Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Free Tools

Explore our collection of AI-powered tools designed to boost your productivity.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Free Tools Pricing Schools Business

Database Relationships and Entity Attributes

18 Questions

0 Views

Database Relationships and Entity Attributes

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the role of a primary key field in a table?

It remains a primary key in the original table (correct)
It becomes a foreign key in another table
It is used to model business objects
It is used to describe relationships between entities

What type of words often describe relationships between entities?

Adverbs
Verbs (correct)
Nouns
Adjectives

What is the purpose of a conceptual data model?

To design the database schema
To present the physical database structure
To model the business objects in a system (correct)
To implement the database

What is an attribute in the context of a data model?

A characteristic of an entity (C) Signup and view all the answers

What is the relationship between a primary key and a foreign key?

A foreign key is a primary key in another table (A) Signup and view all the answers

What is the role of a data modeler?

To model the business objects in a system (D) Signup and view all the answers

What is the primary purpose of a Logical Data Model?

To establish the relationships between data elements (B) Signup and view all the answers

What type of entity is typically introduced in a Logical ERD?

Associative entity (A) Signup and view all the answers

What aspect of a database is considered when developing a Physical Data Model?

The convention and restriction of the DBMS (B) Signup and view all the answers

What is the main difference between a Logical ERD and a Physical ERD?

The column types and lengths (C) Signup and view all the answers

What is the purpose of a Conceptual ERD?

To provide a high-level overview of the database (D) Signup and view all the answers

Which model is responsible for managing many-to-many relationships?

Logical ERD (A) Signup and view all the answers

What is the primary purpose of an Entity Relationship Diagram (ERD)?

To describe an overall design concisely yet accurately (C) Signup and view all the answers

What is an instance of an entity in a database?

A record or row in a table (D) Signup and view all the answers

What is the characteristic of a primary key in a database?

It identifies uniquely every row (A) Signup and view all the answers

What is the purpose of a foreign key in a database?

To link two tables together (A) Signup and view all the answers

What are the three components of an Entity Relationship Diagram (ERD)?

Entities, Attributes, and Relationships (B) Signup and view all the answers

What is an attribute in a database?

A fact or description of an entity (A) Signup and view all the answers